Disordered materials, when subjected to external stress, goes through local breakdowns that eventually emerge as a catastrophic fracture when the load exceeds a critical value. These breaking events, called avalanches, are usually detected as accoustic emissions [1]}. Systematic statistical analysis of the time series of these events have led to considerable insight into the failure dynamics of disordered samples across scales. Particularly, the scale free nature of the size distribution of these avalanches have motivated a `critical phenomena' description of fracture processes. From laboratory scale experiments to
earthquake statistics, the Guttenberg-Richter-like law is widely and accurately verified [2]}, [3]}.
